Heel-nailing machine.



- G. M. BETTENGILL.

HEEL NAILING MACHINE.

APPLICATION FILED NOV. 6, 1909.

Patented Dec. 1, 1911 1- s'EEETs-sEEET 1.

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G. M. PETTENGILL.

HEEL NAILING MACHINE. APPLIOATION FILED NOV. 6, 1909.

1,1 1 9,763, Patented Dec.1,1914

7 BHEETSBHEET 2. 5i E malbm I M W G. M. PETTENGILL.

HEEL NAILING MACHINE.

APPLICATION FILED NOV. 6, 1909 1,1 19,763. Patented Dec. 1,1914.

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APPLIGATION FILED NOV. 6, 1909.

Patented Dec. 1, 191 1 7 SHEETS-SHEET 4.

ll iiflessesf 11. M. PETTENGILL.

HEEL NAILING MACHINE.

APPLICATION FILED NOV.6, 1909.

1,1 19,763. P 1611161 Dec.1,1914.

7 SHEETS-SHEET 5.

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HEEL NAILING MACHINE.

APPLICATION FILED NOV.6.1909.

1,1 19,763. Patented Dec.1,1914

7 SHEETS-"SHEET 6.

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a. QM, @WW 59m UNITED STATES PATENT onricia.

GEORGE M. PETTENGILL, OF HAVERHILL, MASSACHUSETTS, ASSIG'NOR T HAVERHILLSHOE MACHINERY COMPANY, A CORPORATION OF MAINE.

State of Massachusetts,

HEEL-NAILING MACHINE.

Specification of Letters Patent.

Patented Dec. 1, 1914.

Application filed November 6, 1909. Serial No; 526,561.

To all whom it may concern:

Be it known that I, GEORGE M. Perrier:- GILL, of Haverhill, county ofEssex, and have invented an Improvement in Heel-Nailing Machines, ofwhich the following is a specification.

This invention relates to certain improvements in heel-nailing machinesand particularly those of the vertically-moving crosshead type shown inmy prior Patent No. 861,051, dated July 23, 1907, in which a heel ispricked on a holder in the rear of the jack, simultaneously with thespanking on of the top-lift on the heel of a shoe on the jack, meansbeing provided for transferring the heel which has been pricked to thejack, so that it may be attached on the next movement of the crosshead.In the machine of said patent a heel-holder was provided which was madeadjustable to different inclina tions to enable the heels to be prickedat corresponding inclinations, but, as the heelengaging face of thenail-plate, in a machine of this character, is necessarily heldperpendicular to the drivers during the nailing operation, when a heelwas to be pricked at a rearward inclination and the heel-plate wasclamped against the top ofthe heel to hold it in place while it wasbeing pricked, the plate would only hear on the front edge portionthereof, so that, in case the perpendicular line from the upper breastedge falls in front of the base of the heel, when resting on a holder inposition to be pricked, (as where the heel is considerably undercut atthe breast, so that the breast inclines forwardly from the base of theheel,) the heel would be tipped up on the front edge of its seat untilits top bore against the face of the nail-plate. The heel would thus besupported only on the holder adjacent its breast, so that, when the awlsengage it, the awls adjacent the breast orfront would be forced into theheel at once, while those in the rear thereof would not enter it untilthey had tipped the heel back against the rear portion of the holder.The result was that the front awls would enter the heel perpendicularlyto its top for some distance, before the heel was tipped back, and, whenit was tipped back by the rear awls, the front awls would either be bentor broken, and in any event would I prick holes at diiferentinclinations than vby the breasting-knife, so that the nails which itwas particularly necessary to drive at a rearward inclination would bedriven perpendicularly, or even toward the breast of the heel. It was,therefore, under these conditions, possible to prick the heel only to acomparatively small depth, when pricking the heel at an inclination,such a depth being entirely inadequate when it was desired to nail ahigh heel in one deck, or at one operation. As the heel was not, underthe above-described conditions, pressed firmly against the holder, itwould also frequently slip out of place on the holder, caus ingdifficulties which will be obvious. Under the above-describedconditions, if the angle at which a; heel was pricked, z. e., theangular relation between the top of the heel and the awls, variedmaterially from a right angle, when the heel was drawn against theheel-engaging face of the nail-plate to withdraw theawls, as said facewas perpendicular to the awls, the heel would then tip, if it had nottipped on the entering movement, so that the awls' would be causedtobind, and, in many instances, to be broken or otherwise renderedunsuitable for further use. Under these conditions, as when the awlswere forced into the heels, the greater the depth to which the heelswere pricked, the greater would be the difiiculties encountered.

The principal objects of my invention are to provide means for clampingthe heel securely in the desired position on the holder, so that it willnot be tipped or moved, as

a the awls are forced therein, and for holding In the same connection 1have asan} object to provide means whereby the heel-engaging face of thenail-plate will be held perpendicular to' the drivers during the nailingoperation, so that high heels (heels approximately two inches in height)of pulp or leather maybe nailed in one-deck, or at one operation,thereby obviating the neces-" sity of attaching the heel in two decks,or pricking them in a separate machine before they are attached, as isfrequently necessarv and makin a lar e savin in labor K 7 btheheel,independently of the means for holding the heel from tilting asthe awls are forced into it or withdrawn therefrom. Before performingthe pricking and nailing'op'erations in the machine disclosed in myvsaid prior patent, it was necessary to clamp the heel onto theheel-holder by hand,

and this method was to an extent ineflective, as the heel was not heldwith sufiicient security, and the operation caused delay. For thesereasons, a further object of my invention is to provide a suitable andeffective means for automatically clamping the heels with a uniformpressure under all conditions of height of heel, or adjustment of theheel-holder or jack, before the awls enter the heel to prick it, or thenails are engaged by the drivers to nail it.

"When heels are pricked to a considerable depth, much force isnecessarily placed on the plate against which the heel is drawn towithdraw the awls from the heel, and a further object of my invention isto provide an automatic locking-device for the parts which hold theplate while the awls are being withdrawn, which will efl'ectively resistsaid force.

In prior machines of thistype it has been customary for-the boy whosticks the nails,

to move the nail-plate slide to its different, positions, and, as histime is more fullyoccupied than is that of the operator, a further obect of my invention is to pr0- vide means whereby the boy may berelieved of a portion of this work and the operator may change thepositions of the turret and the slide by operating asingle handle andwithout consuming an appreciably greater amount of time than waspreviously used in changing the turret.

As, in the practical operation of a machine of the character shown in mysaid prior patent, accidents have sometimes oocurred from the loweringof the crosshead mrwea when the nail-plate slide was in the nailingposition'and the turret and heel-pricking devices were in the positionto spank on the top-lift and prick the next heel, a further object of myinvention is to provide interlocking devices which will render itimpossible'for the turret and nail-plate to be held in any relativepositions other than the relative positions in which they should be heldwhen the crosshead is lowered.

The rack and pinion arrangement for connecting the crosshead to theawl-holder, disclosed in my said prior patent, has been found to be ofinsufficient strength and durability to withstand the usage to which itis likely to be subjected, and a further object,

of my invention is to provide an improved means for holding theawl-holder in its different positions with relation to the crosshead,and for rigidly connecting the same thereto during the prickingoperation, so

that all possible breakage of the connecting. I I

parts is obviated, and the durability thereof is greatly. increased.

Further objects of my invention are to improve the construction of mysaid prior machine in certain details so that it will be more'serviceable.

.I accomplish these objects by the means shown in the accompanyingdrawings, in

"which- Figure 1' is a front elevation of the heelhailing machineprovided with my invention, Fig. 2 is a sectional view on the line a-aof Fig. 1, showing the main operating parts in elevation, Fig. 3 is arear elevation of the portion of the machine above the table, Fig. 4 isa detail view, showing the operation of the holder-locking device, Fig.

5 is a plan view of the machine, Fig. 6 is a detail plan view, partly inhorizontal secat the line dd of Fig. 1, Fig. 11 is a bottom plan view ofthe nail-plate slide, Fig.

12 isa detail sectional view at the line d d operation during thepricking and naildriving operations, respectively, Fig. 19 is a detailview of the upper side of the heelplate, and Fig. 20 is a detail view ofthe under side of the nail-plate.

In the drawing 1 indicates the main frame of the machine having a mainshaft 2 journaled therein, which is adapted to be operated by a suitableclutch mechanism, so that, when the clutch is thrown in, rotation of theshaft will be caused, and the machine will then be brought to rest inthe initial position. As mechanism for accomplishing this function iswell known in the art, a description thereof is unnecessary.

The main shaft 2 is provided with a crank, on which aconnecting-rod 3 isjournaled at one end, the opposite end of said rod 3 being connected tothe lower crosshead 4, and the crosshead 4, being connected by two pairsof vertical rods 5 to the upper crosshead 6, said rods being mounted toslide in suitable bearings on the frame,

' so that the usual down and up movement of the upper crosshead iscaused when the main shaft makes a complete revolution.

The turret 7 is mounted to oscillate on the crosshead 6 and has adriver-gang 8 and the top-lift holder 9 mounted on arms which extendradially therefrom in the usual manner. As shown in Figs. 7 and 8, thetoplift holder 9 is provided with means for holding the top-lift thereonwhich consists of a pair of arms 10 pivoted on opposite sides of itsholding arm and connected at their ends by a bar 11, which extendsparallel to the'fa'ce of the plate and is adapted to swing toward andfrom anabutment 12 secured to the plate 9, said abutment 12 having aV-shaped recess ada ted to receive the rounded end of the .top-li t. Aspring 13 is connected to the armslO, and acts to press the bar 11against thebreast of the top-liftso as to hold the same firmly inposition on the plate 9.

The nail-plate slide holder 14 is of angular form, and the verticalportion thereof is mounted in vertical guideways 15 on the rear side ofthe crosshead 6, and its horizontal portion has horizontal guideways 16in which the nail-plate slide 17 is mounted. A pair of upright rods 18are rigidly secured in the table of the frame and extend upwardlythrough said horizontal portion of said shoulder, the latter beingadapted to slide vertically on said rods. A pair of sleeves 19 areslidably mounted on the rods 18, and a pair, of springs 20 are mountedon the rods 18 between said sleeves and collars 21 fixed on the rods 18adiacent the lower ends thereof. 'Said rods 18 are reduced in diameterat their upper ends to form shoulders on which a nail-holder frame 180is mounted, and said frame 180 is clamped against said shoulders by nuts18 on the upper ends of said rods 18, so that said springs 20, bypressing against the sleeves of the machine, and an angular lever-arm 23is connected thereto and extends rearwardly from said shaftand alsoupwardly, and is provided with a forwardly and downwardly inclined face23 at its upper. end. A pair of arms 24 are connected to the shaft 22and extend horizontally rearward therefrom, said arms being connected bylinks 25 to the sleeves 19, so that when the lever 23 is swungrearwardly on the shaft 22 as a center, the sleeves 19 will be drawndownwardly against the action of the springs .20. A bracket-arm 26 ismounted on the crosshead 6, and a roll 27 is journaled thereon inposition to engage the inclined face 23 as the crosshead descends, andto swing the lever 23 rearwardly.

An awl-carrier 28 is mounted to slide vertically between the back sideof the crosshead 6 and the vertical portion of holder 14,-and isprovided with an awl-gang 29 and a short driver 30 at its lower end. Aheel-holder 31 is pivotally mounted at its front end directly beneaththe awl-gang 29, on a support 32 inthe rear of the jack 33, sai'dsupport 32 being mounted on a screw 34, vertically arranged in the tableof the machine and adapted tobe raised and lowered by a nut 35, toadjust the heel-holder 31 vertically. An adjusting-screw 37 is thread--ed in the support-32 in position to support the rear end of the holder31, so that the inclination'of said holder may be varied by raising andlowering the screw 37. The usual guiding and holding devices 38 for theshoe on the jack are provided, said devices being mounted on the holder32.

The nail-plate slide 17 is provided with a removable nail-plate 39 atits front end, and a heel-engaging plate 40 is connected by a pivot 41to the under side of said plate 39, adjacent the front end thereof, topermit the plate 40 to swing down to a position in which itsheel-engaging face, on its under side, will be parallel to the top of aheel held on the holder 31 in position to be pricked at a rearwardinclination. A, series of guiding-sleeves 42 are mounted in the thedrivers 8 and awls 29 and having guid ing passages therethrough ofcorresponding diameter. The plate 40 is provided with a series ofapertures 40', which register with the passages in the sleeves 42, andare of sufiiciently greater diameter than the external diameter of saidsleeves 42 as to permit the plate 40 to be tilted to any angle withrelation to the plate 39 necessary to enable it to conform to theinclination of the top of any heel which is likely to be pricked on themachine. sleeves 42 is in the ordinary manner, as shown inv Fig. 20,that is, it corresponds to The arrangement of the his the desiredarrangement of nails about the edge portion of the particular heelswhich are to be nailed.

A lever 43 is pivoted on the upper side of the plate 40, said leverbeing arranged in recesses formed in said plate 40 and in the nail-plate39, and an attaching brads or staple 44 is mounted in the plate 40 andis suspended on one end of the lever 43 in position to be driven intothe heel by the short driver-30. M

A locking-bar 45 is mounted to reciprocate in brackets 46, 46, on theunder side of the nail-plate slide 17, see Figs; 10, 11, 12, 16, 17, andto swing vertically to a limited extent at its front end in the frontbracket 46 and on the rear bracket 46' as a pivot.

Said bar 45 has a head 45 at its front end and a transversely-projectingfinger 450 at its rear end,- the head 45 inthe forward position of thebar 45 being adapted to extend over the rear end of the plate 40, whichprojects for a distance in the rear of plate 39, and the finger 450being arranged to engage a-stop-screw 47 on the holder 14 under certainconditions to be explained. A spring 48 is connected at one end to theunder side of the slide, and at the other end to the bar 45, and actsconstantly to draw the bar forwardly or towardthe plate 40 and to hold astop-pin 451 on the bar 45 against the bracket 46. A stop-screw 49 ismounted in the slide 17 inposition to engage the upper side of the bar45 adjacent its front end, and a spring-arm 50 is mounted on the underside of the slide 17 and extends beneath the bar 45 and acts constantlyto hold said bar in engagement with the stop-screw 49, so that S21ldhead 45 may be adjusted vertically in either direction by merelyadjusting the stop-screw 49.

The improved means which I employ for connecting the 'awl-holder to thecrosshead,

and for varying the position thereof withrelation thereto, will now bedescribed.

A locking-bolt 51 is mounted to slide horizontally in thecrosshead 6,transversely thereof, and a cam 52 is mounted on the turret 7 inposition to engage a depending-pin 53 on the bolt 51.- An aperture 54 isvprovided in the upper end portion of the andcarrier 28, said aperturebeing located in a position to permit the bolt 51 to enter the same incertain positions of said carrier, to lock the same to the crosshead. Alockingball 56 is located in a tube 57, mounted in the vertical portionof the holder 14, adjacent one side of the aWl-carrier, and a spring 58is provided in said tube 57,'between said ball and a stop-screw 59, topress the ball 56 against the rear side of the awl-carrier 28. TheaWl-carrier 28 is provided with a recess on its rear side, which theball 56 is adapted to enterwhen the carrier is in its uppermost positionto support the same L1 ieyrea temporarily on the holder ,14, as will behereinafter more fully explained.

The frame 180 is provided with the usual nail-holder 60 in the front endthereof, and a. nail-dumping plate 61 is mounted on a carrier 610, saidcarrier being reciprocally mounted in guideways formed in the under sideof the frame 180, as indicated in dotted lines in Figs. 2 and 5, saidplate being adapted to support the nails in said nailholder when thecarrier is in its forward position and to permit the nails to bedischarged when it is drawn back to the position of'Fig. 12.

The means Which I employ for enabling the operator to change thepositions of both the turret and nail-plate slide by a singleoperating-handle, will now be described.

A shaft 62 is journaled in bearings 63, 64, on the horizontal portion ofthe holder 14, and the rear end of said shaft 62 has a swivel connection(permitting limited oscillation thereof) with an arm 65, at the rear endof the nail-plate slide. A locking-bolt 66 is mounted in the holder 14,in position to enter recesses 67, 68, in one edge of the slide 17. Aspring 69 is provided which is disposed to press the bolt 66 toward theslide 17, and a lug 70 is provided on a worm-gear 71, for Withdrawingthe bolt from the slide recesses when the shaft is turned to the left,see ig. 9, said wormgear 71 being splined to the shaft 62, and meshedwith a corresponding gear 72 on a vertical shaft 73, which is rotatablymounted in a hearing at the-side of the holder 14 and held fromlongitudinal movement with relation thereto by a collar 75 at theopposite side of said bearing from gear 72. Said shaft 73 is alsorotatably mounted in bearings 76 on the crosshead and a worm-gear 77 issplined to the shaft 73 and arranged between the bearings 76, so thatthe crosshead may move with relation to the shaft carrying the gear 77with it. A shaft '78 is rotatably mounted in the crosshead 6 and extendstransversely therethrough to the front side thereof, said shaft beingheld from longitudinal movement therein by suitably arranged collars andhaving a worm-gear 79 on its rear end. which meshes with gear 77. Asshown in Figs. 1 and 5, a spring-actuated locking-bolt 80 is slidablymounted in the crcsshead in position to enter notches in the turret 7,to lock the same in either the nailing or spanking position. A pin 81 isprovided on shaft 78 in position to engage a tooth 82 on the bolt 80, sothat when shaft 78 is rotated to the right the bolt 80 will be drawn outof engagement with the turret. A handle 83 is provided on. the front endof shaft 62, by means of which said shaft 62 may be both oscillated andslid longitudinally in its bearings.

The safety device which I employ comprises a shaft 84, which is mountedto rotate in lugs 140 on the front end of the holder 14 at one side ofthe guideways in which slide 17 moves. An arm 85, having a friction-roll85 in its end, is secured on said shaft between said lugs, so as to holdthe shaft from longitudinal movement with relation to the holder, saidarm being arranged to bear against the front end of slide 17 when saidslide is in position over holder 31, as shown in Figs. 6 and 13,and

to bear against the side thereof when the slide is pushed forwardly fromsaid position, as shown in Fig. 1 5. Said shaft 84 is rotatably andslid'ably mounted in lugs 600 on the crosshead, andiafinger 861sarranged between said lugs 600 and splined to the shaft 84, thespline-groove being formed in the shaft as it also is in case of shaft73) to permit the shaft to rotate in said lugs and the crosshead to.move with relation thereto. A. flange 87, having a notch 87 therein, isprovided on the turret 7, so arranged that said finger 86 may be swungeither into engagement with the flange or into said notch, according tothe position of the turret. A spring 88, on the shaft 84,

constantly tends to rotate said shaft so asv to swing its arm 85 towardthe slide 17.

The locking device for the holder 14 comprises alatch 89, pivoted at itslower end to a lug 90, on the table of the machine, and

extending upwardly at one side of the holder 14:, as best shown in Figs.3 and 4, said latch being provided with a holding shoulder 89,which, inthe lowest poistion of the holder, is adapted to engage the upper sidethereof to lock the same in said position, and a spring 91 is connectedto the upper end of the latch 89 and to the holder 14, and acts to holdthe latch against the side thereof. An inclined face 89 is also formedon the latch, and a pin 92 is mounted on the crosshead 6 in position toengage said face under conditions which will be described.

The device which I preferably employ. for applying cement to the heelwhile it is supported by the nail-plate slide is shown in .igs. 2, 10and 12, and comprisesja' lever 93 pivoted on a rod '93 supported by apair of bracket 94, mounted on the table, said lever having agluing-roll 95 on its front end and a weight 96 attached to its rearend, A tray 97, adapted to contain liquid glue or cement, is mounted onthe bracket 94 di-= I rectly beneath the roll 95, in position topermitthe roll 95 to dip therein. A rightangular shapedlever 98 is alsopivoted on the rod 93, and one arm thereof is pivotally connected at itsupper end to the nail-' supporting plate carrier 610. the other armthereof having a finger 99, which is adapted to extend beneath the rearend of the v by the joint which. connects it to As the crossheaddescends to per orm the The operation of the above-described machine isas follows: At the beginning of the operation, the turret is held in theposition of Fig. 1.3, in which the spanking plate 9 is held in positionover the jack. In this position the bolt 51 is held in the aperture 5aof the awl-carrier 28, so that the latter is firmly connected to thecrosshead. A heel is placed on the holder 31, which is shown as adjustedso that the top of the heel inclines downwardly from its breast, toenable the same to be pricked at a rearward inclination, and thenail-plate slide 17 is also held in position over the heel-holder, inwhich position it will be locked by the bolt 66, which will enter therecess 68 in the slide, as shown in Fig. 6. The heel-engaging plate willbe normally held by the combined action of gravity and of the spring 18in forcing the inclined face on the front end of the bar against theupper rear corner of said plate in the position of greatest inclinationto which it is permitted to move late 39.

pricking operation, the roll 27 on the rear side thereof will engage theinclined face 23, on the upper end of the lever 23, cansing the levers24 to draw down the sleeves 19 against the action of springs 20. Thispermits the holder 14, which was previously supported by said springs20, to slide downwardly in its guideways until the heel-engaging face ofplate 40 rests flatly against "the. entire surface of the heel, saidscrew 49 being so adjusted that the bar 45 will engage the plate 40 toprevent it from swinging toward plate 39 at a point at which its face isexactly parallel to the top of the heel on the holder.- ..T he face ofthe plate 40 willthus be pressed evenly against the top of the heelthroughout the entire surface thereof, as shown in Fig. 13, so thattherewill not be the slightest tendency to cause it to tilt on the holder-31,and, as the holder 14 and slide 17 are heavy castings, and the entireweight thereof is placed on the heel, it will be apparent that the heelwill be firmly pressed against the holder 31, so that it will not becomemisplaced during the sub,- sequent pricking operation, and that theforce with which plate 5L0 is pressed against the heel is the same underall conditions. As the crosshead descends it will force down theawl-carrier 28, disengaging the same from the friction-ball 56 as soonas the holder 14 is supported by the heel. The awls 29 will then beforced down through the sleeves 42, and, as the awls descendperpendicularly, and the heel is held in an inclined position withrelation thereto, they will be forced into the heel at a correspondinginclinationto the top and towardthe rear of the heel,-the awls beingguided by the sleeves 4:2 in close proiri mity to the-heel,

and forming a series of holes which are parallel. when the bores of thesleeves are parallel, as shown. At the same time the short driver 30forces the attaching-pin 44 into the heel, so as to connect the heel tothe plate 40. As the crosshead descends, the roll 27 will travel down onthe side of lever 23, after it has moved out of engagement with face 23,and hold said lever in the position to which it was moved, the side ofsaid lever being held perpendicularly when in its rearmost position.

Much force is required to Withdraw the awls from the heel, particularlyif it is of pulp, and. when the awls are drawn back through thenail-plate, the heel will be drawn very forcibly against the plate 40,but as this plate is firmly locked by bar 45 in the oblique positionshown in Fig. 16,-

this force will be evenly distributed over the entire surface of theheel, so that the heel will be prevented from tipping with relation tothe awls, as the awls are stripped or withdrawn therefrom. Allpossibility that the awls will be broken from this cause is thusprevented, although if the plate 40 were permitted to swing up, even toa slight extent, the heel would swing on its breast edge and causebinding and possibly breakage of the awls. As the awls are strippedthere is a strong tendency to pull up the leather about each awl, but asthe plate 40 bears against the top of the heel about each awl thisaction is prevented.

It will be noted that the entire upward pressure of the heel against theplate 40, when the awls are withdrawn, is brought to bear on thenailplate slide 17 and therefore on the holder 14, so that there will bea strong tendency to lift these parts during the first portion of thewithdrawing movement, at which time the strain is part1cu-' larly great,and frequently greater than the weight of said parts. Possible liftingof the holder 14 at the time the awls are withdrawn is prevented by thelatch 89, the shoulder" 89' of which is so arranged that when the holder14 is permitted to move downwardly by the action of the lever 23, topress the heel on the heel-holder, the upper side of said holder will bemoved opposite said shoulder 89. so that the spring 91 will swing thelatch sufliciently to carry said shoulder over the upper side of theholder 14, as shown in F ig. 4, thus locking the holder 14 from upwardmovement. and counteracting any upward strain which is placed on saidholder sufficient to lift it. As the crosshead moves upwardly the pin 92thereon will engage the oblique surface 89 on the latch, after the awlshave been partly or wholly withdrawn, and move the same to one side, asindicated in Fig. 3. so that the holder 14' will be free to rise by thetime the sleeves 19 are permitted to move upward upon the forwardswinging of the lever 23, as the crosshead moves to its uppermostposition.

rection perpendicular to its heel-engaging face, so that, when the plate40 is in the inclined position of Fig. 16, said brads will beheld in anangular position with relation to the nail-plate 39, but will be heldperpendicular to the face of the heel on Much the plate 40 bears, andwill be driven in this direction when forced into the heel at the timethe heel is pricked. When the nailplate is moved to the nail drivingposition and the plate40 is swung up to the hOllZuIltal position shownin Fig. 17, the angular relation of the brads 44 and the heel will notbe changed, but the brads will be moved to a position perpendicular tothe nail-plate 39, so that bending of the staple by the heel, as theheel is pressed upon the jack and the plate 40 is swung up to thehorizontal position, is prevented. That is, if the brads 44 were driveninto the heel with the parts in the position of Fig. 17, but with theheel in the position of Fig. 16. it will be apparent that the brads 44would be driven into the heel at an acute angle tothe face of the heel,and when the heel was transferred to the jack and the driver block wasbrought to bear on the top of the nail-plate through the driver-block,the face of the heel would be swung against the face of the plate 40,causing moreor less bending of the brads 44,

repeated bending of which tends to cause them to break, unless they arein perfect spring temper.

The movement of the crosshead to its uppermost position causes theawl-carrier 28 to be raised until its recess 55 is opposite thelocking-ball 56, so that said ball may enter therein, as shown in Fig.2. The operator at the front of the machine then turnsthe shaft 62 byhandle 83, withdrawing the bolt 80 from the turret. so that the lattermay be swung to the position of Fig. 1, in which the drivers 8 will beheld in a vertical position over the jack.

68, so that the operator may then, by pushing on handle 83, push backslide 17 until the nail-holes in plate 39 are directly beneath thenail-holder 60. The boy who sticks the nails in the rear'of the machinethen draws back the plate 61 to permit the nails, which have previouslybeen placed in This movement of shaft 62 also withdraws the bolt 66 fromthe recess bolt 51 from the awl-carrier 28, so that, as

' the crosshead again descends, it will not, on

this movement, force down the awl-carrier and thus disengage it from thefriction-ball 56, but said carrier will be supported by said ball, whichis pressed into recess 55 with sufficient force to enable the holder 14to support the carrier. 28 as the crossheaddescends to drive'the nails,as shown in Fig. 14. The forward movement of the nailplate slide 17carries the arm 450 on the locking-bar 15 against the stop-screw 47 on Ithe holder 14, so that the bar is drawn back out of engagement with theplate 40,

as shown in Fig. 10. The plate 40 is then free to swing upwardly, sothat as the crosshead descends, permitting the holder 1a to be loweredagain, to press the heel firmly against the heel-seat of the shoe on thejack,

in advance of the driving action, the plate 7 40 will be swung againstthe nail-plate 39 so that its under surface will be flush with the endsof sleeves 42, and the surface of the plate 40 performs no essentialfunction, as

the faces at the ends of the sleeves 42 under these conditionspractically perform the function of the ordinary nail plate at thistime, the plate 40' merely providing an increased bearing surface forthe heel, and, while the plate 40 may or may not perform the function ofa. nail plate, its primary function is that of an awl -stripper,although it has a secondary function, when the ends of the awls are heldin the same horizontal plane, of clamping the heel in position while theawls are being advanced. A short driver 8 is connected to thedriver-plate and engages the lever 43 to withdraw the attaching-brads 44from the heel, in a manner similar to that explained in my said priorpatent. As the crosshead is again lifted, permitting the holder 14 to belifted to its initial position by springs 20, the holder,

turret is next rotated to the spanking position, said bolt may againenter said aperture. As the engagement of the ball 56 is not positive,but is rather a frictional engagement, and therefore might possibly railto lift the carrier atall times, I provide a lifting pin 100 in thecrosshead, which is adapted to move in a vertical slot, 101, in theawl-carrier, when the crosshead descends to perform the nailingoperation, which is so arranged with relation to the upper end of saidslot that it engages the carrier at that point when both the crossheadand awl-carrier are in their uppermost position. With this arrangement,if the holder 14, acting through ball 56, should fail to lift thecarrier 28, it will be positively lifted by the crosshead acting throughis being spanked on to the heel which has just been attached.

Various important advantages are secured by having the heel-engagingplate 40 pressed upon the heel and having the heel thus pressed upon thejack by the gravity alone of the nail-plate 39, slide 17 and holder 14,

so that these parts are floating, or free to move, or be moved to anyposition,

(within necessary limits) previous to and during the nail-drivingoperation, as distinguished from anaction'in which the plate ispositively forced down to a predetermined position in advance of thedriving action. The heel is always pressed against the jack, whateverthe height to which the jack may be adjusted, with the same force andwith sufficient force to prevent the drivers from pushing the heel fromthe brads, or staple 44 when they" strike the nails to drive them intothe heel and thus preventing said staple from performing one of itsimportant functions,'viz:-to hold the heelin place while the nails arebeing driven.

Another important advantage resides in thefact that the action of thenails on -the heel,

as they are driven, usually causes the heel to be materially compressed.and when this occurs, the plate 39 will follow by its gravity, and theends of its sleeves or bushings 42 will be maintained in contact withthe heel, throughout the entire driving operation, so that the nailswill always be guided and held upright by said sleeves, and theprojecting ends on which the top lift is to be spanked will not be bentover or crippled, but will be held in a perpendicular position. When, atthe last portion of the driving operation, the driver block strikes,

the top of. late 39, as shown in Fig. 17, the plate may e, and inpractice, is further depressed, causing the heel to be compressedsufficiently to close tightly the oint between tion, will now bedescribed.

When slide 17 is in either the nail receiving or the pricking position,its front end will not extend beyond the front end of the gnideways inwhich the slide is mounted, so that when the slide is in either of thesepositions the spring 88 will hold the arm against the front endof thesaid guideways in front of the slide, as shown in Figs. 6 and 13.When'the arm 85 is in this position, the finger 86 on the upper end ofrod 84: will beheld atone side of the flange 87 on the turret. hen theturret has been moved to the nail-driving position, the notch 87' insaid flange 87 will be held opposite said finger 86, so that when theslide 17 is pushed forwardly into.

position over the jack, its front end will engage the arm 85 and swingit to one side of said guideway, as shown in Figs. 5 and 15, causingfinger 86 to be swunginto said notch 87', so that the turret will thenbe locked in nailing position, and it will not be possible to move ituntil the slide 17 has been drawn back to the pricking position. It willthus be impossible to turn the turret to the top-lift spanking positionwhile the slide is in the nailing position. If, however, while the slide17 is in one of its rear positions, and the turret is in spankingposition, it should be attempted to push forward the slide to thenailing position, the finger 86 would be immediately swung against theflange 87, before the arm 85 had been swung to one side of the slide 17,thus making it impossible to push the slide forwardly to an appreciableextent until the turret had been turned to nailing position. The turretand nail-plate slide .will thus always be held in the related positionsin which they are designed to be held, and all possibility of accidentis thereby avoided.

The o eration of the heel-gluing device is as follows: Before the nailsare stuck in the holder 60 the supporting slide 61 is pushed forward,swinging lever 98, so that its finger 99 lifts the weighted and of lever93 and dips the roll 95 into the glue in tray 97. lVhen the slide 17 isdrawn back to the nail-receiving position, the heel I which has beenattached thereto will be diimages rectly over the roll 95, so that, whenthe slide 61 is drawn back to dump the nails, the lever 98 will be swungback, permitting the weight 96 to lift the roll 95, so that it engagesthe heel and rolls thereon to the back side thereof from the pointengaged, as the slide 17 is again pushed forward.

It has been invariably considered necessary, so far as I am aware, ingluing a heel by hand or by. machine, that no glue be applied to theheel adjacent the breast,

for the reason that, in breasting the heel, I, the part shaved off wouldstick to the shank of the shoe, and for thisreason I arrange the lever93, so that the gluing-roll will engage the heel at a distance in therear of its breast, and no glue will be applied to the portionadjacentthe breast.

Having described by invention, what I claim as new and desire to secureby Letters Patent is:

1. In combination with a heel holder, a

die block having a series of passages therethrough, a work-engagingplate pivotally mounted thereon at the side of said block next saidholder and having correspondin apertures therethrough, means wherebysaid block and said plate maybe moved to clamp a heel againstsaid'holder, a gang of awls movable through said block and plate inpredetermined paths, fixed guiding devices for said awls, and means tohold said plate with its work-engaging face oblique to the path of saidawl 2. In combination with a heel holder constructed to hold a heel withits top at difierent inclinations, a carrier having an awlgang thereonand movable to and from said 7 plate having apertures formed to permitthe awls to pass therethrough at different an gles with relation to saidface.

3. In combination with a heel-holder, an. awl-stripping plate having aheel-engaging face and apertures leading therethrough to said face, aseries of awl-guides disposed in said apertures and terminating adjacentsaid face, holding means for said plate constructs ed for adjustment tovary the inclination of said face with relation to said awl-guides, andhold said face in planes parallel to the tops of heels held at differentinclinations by I said holder, and a gang of awls reciprocal in saidguides to prick a heel held on said holder, said holding means beingadapted to hold said plate against the action of the awls when they arewithdrawn from the heel.

4. In combination with a heel-holder, an

awl-stripping plate having a heel-engaging face and apertures leadingtherethrough to said face, an awl-guide supported at the op posite sideof said plate from said holder, having a series of projections extendingloosely into said apertures and having awlpassages leading therethroughto the ends thereof, supporting-means for said plate constructed foradjustment to vary the inclination of said face With relation to saidawl-passages and to hold the face in planes parallel to the tops ofheels held at dificrent inclinations by said holder, and a gang of awlsreciprocal in said passages to prick a heel on said holder, saidsupporting means being arranged to hold said plate against the action ofthe awls when they are withdrawn from the heel.

In combination with a heel-holder and an awl-gang reciprocal inpredetermined paths to prick a heel held thereby, anaw]- stripping platepivotally supported in position to swing into engagement with the top ofa heel held in position to be pricked with its top disposed obliquely tosaid paths and having apertures to permit the awls to pass therethrough,and means for engaging said plate to hold the same from swinging awayfrom said holder as the awls are withdrawn from the heel.

6. In combination with a heel-holder and an awl-gang reciprocal inpredetermined paths to prick a heel held thereby, a support having anawl-stripper plate pivotally connected thereto in position to swing intoengagement with the top of a heel held in position to be pricked andadapted to permit the awls to pass therethrough and means for limitingthe swinging movement of said plate away from said holder, at differentpoints.

7. In combination with a heel-holder and an awl-gang reciprocal inpredetermined paths to prick a heel held thereby, an awlstripping platepivotally supported in position to swing into engagement with the top ofa heel held in position to be pricked and adapted to permit the awls topass therethrough, and an adjustable stop for engaging the plate tolimit the swinging move ment thereof, away from said holder, atdifferent points.

8. In combination with a heel-holder and an awl-gang reciprocal inpredetermined paths to prick a heel, held thereby, a support, anawl-stripping platevpivotally connected to said support in position toswing into engagement with the top of a heel held in position to bepricked, and adapted to permit the awls to pass therethrough, means onsaid support for engaging said plate to limit the swinging motionthereof away from said holder, and means for relatively moving saidsupport and said holder to clamp a heel therebetween as the aivls areadvanced, and for holding said support against the action of the awls asthey are stripped.

9; In combination with a heel-holder and an awl-gang reciprocal inpredetermined paths to prick a heel held thereby, a support having anawl-stripping plate pivotally connected thereto in position to swinginto engagement with the top of a heel held in position to be pricked,and adapted to permit the awls to pass therethrough, an. adjustable stopon said support disposed to limit the swinging movement of said plateaway from said holder, at different points, and means for relativelymoving said support and said holder to clamp a heel therebetween, as theawls areadvanced and for holding said sup-- port against the action ofthe awls as they are retracted.

10. In a heel-nailing machine having heelsupporting means, a nail-platehaving a se ries of passages therethrough, an awl-gang and a.driver-gang movable through said passages successively, to perform theprick ing and nailing operations on heels held by said supporting means,a stripper for said awl-gang, and means to lock said stripper betweensaid plate and said supporting means during the pricking operation andto unlock it during the nailing operation.

11. In a heel-nailing machine, an awlstripping plate having a series ofapertures, an awl-gang and a drivergang movable in predeterminedparallel paths through said apertures successively to perform thepricking and heeling operations and means for holding said plate at oneangle to said paths when one operation is performed, and at a differentangle thereto when the other is performed.

12. In a heel-nailing machine having a series of nail guides, anawl-gang and a driver-gang movable through said guides successively toperform the pricking and nailing operations, means for holding a heelwith its top or tread face in different angular positions with relationto said guides during said operations, and an awlstripper having aheel-engaging face and movable with relation to said guides tocorresponding angular positions during said operations.

13. In a heel-nailing machine an awlgang and a driver-gang verticallymovable to perform the pricking and nailing operations, means forholding a heel with its top inclined with relation to the paths of theawls, an awl-stripper and means for holding the same in position toengage the top of the heel adjacent each awl to hold the heel fromtipping as the awls are stripped, and means permitting movement of saidstripper to permit the heel to be tit) held with its top in a horizontalposition angles With-relation to said nail-guides durduring the nailingoperation.

14. In a heel-nailing machine a die-block having a series of guidingpassages therethrough and a heel-engaging face disposed perpendicularlyto said passages, an awlgang and a driver-gang movable through saidpassages, successively to perform the pricking and nailing operations,means for supporting a heel with its top extending obliquely withrelation to said face, as the awls are forced into the heel, anawlstripper disposed to engage the portions of the top of the heel moreremotely situated with relation to said face to prevent the heel fromswinging toward said face as the awls are withdrawn and means permittingrelative movement of said stripper and said die block to permit the topof the heel to be held parallel to said face during the nailingoperation.

'15. In a heel-nailing machine, an awlgang and a driver-gang movable inpredetermined parallel paths respectively to perform the pricking andnailing operations, and, means for supporting a heel with its topinclined to said paths having clamping means cooperating therewithtohold the heel in said position during the pricking operation, andmovable to permitthe heel to be held with its top in a differentposition during the nailing operation.

16. In a' heel-nailing machine an awlgang and a driver-gang movable inpredetermined parallel paths respectively to perform the pricking and.nailing operations, and means for supporting the heel with its topinclined to said paths having clamping means cotiperating therewith tohold the heel in said position during the pricking operation, andmovable to permit the heel to be held with its top perpendicular to saidpaths during the nailing operation.

17. In a heel-nailing machine having a series of nail-guides, anawl-gang and a drivei -gang movable through said guides successively toperform the pricking and nailing operations, an awl-stripper, forengaging the top of the heel during said pricking operation, throughwhich said guides are adapted to extend in operative relation to theheel and means for holding said awlstripper in different angularpositions with relation to said guides during said operations.

18. In a heel-nailing machine having a series of nail-guides, anawl-gang and a driver-gang movable through said guides successively toperform the pricking and nailing operations, an awl-stri ping platehaving a series of apertures therethrough in which said nail-guides arelocated and means for holding said plate at different ing saidoperations.

19. 'In a heel-nailing machine, a heel-engaging plate having a series ofapertures therethrough and a heel-engaging face, an awl-gang and adriver-gang successively movable in predetermined parallel paths throughsaid apertures to perform the pricking and nailing operations, and meansfor holding said plate with its face oblique to said paths during thepricking operation and with its face perpendicular to said paths duringthe nailing operation.

20. In a heel-nailing machine, a nail-plate having a series of guidingpassages therethrough, a heel-engaging plate having aperturestherethrough disposed in alinement with said passages and having aheel-engaging face at the opposite side thereof from the nail-plate, anawl-gang and a driver-gang movable through said passages and saidapertures successively to perform the pricking and nailing operationsand means for holding said heel-engaging plate with its face oblique tosaid passages during the pricking operation and with its faceperpendicular to said passages during the nailing operation.

21. In a heel-nailing machine, a nail-plate having a series of guidingpassages therethrough, a heel-engaging plate pivoted to said nail-plateat one side of said passages and having a heel-engaging face at theopposite side thereof from the nail-plate, and a series of aperturestherethrough registering with said passages, an awl-gang and adriver-gang movable through said passages and said aperturessuccessively to perform the pricking and na1l1ng operations, and meansfor locking said heel-engaging plate with its face oblique to saidpassages during the pricking operation and for unlocking it to permit itto swing toward the nail-plate during the nailing operation.

22. In a nailing machine, a support having a series of projectionsprovided with guiding passages extending to the end thereof, aheel-engaging plate movably connected to said support and having aheel-engaging face and apertures therethrough into which saidprojections loosely extend, an awl-gang and a driver-gang movablethrough said passages successively to perform the pricking and nailingoperations, and means for locking the heel-enga ging plate with its faceoblique to said passages during the pricking operation and for unlockingit to permit it to move to a position perpendicular thereto during thenailing operation.

23. In a heel-nailing machine having an awl-gang and a driver-gang, anail-plate having a series of depending nail-guides terminating in apredetermined plane persaid nail-guides disposed therein and arranged toswing its upper side against the 'under side of the nail-plate to holdits said a face in said plane during the, nailing operation, and toswing downwardly to hold said face obliquely to said plane during thepricking operation, and means for locking said heel-engaging plate insaid oblique position. I

24. In a heel-nailing. machine of the character described, aheel-holder, a jack, an

awl-gang and a driver-gang respectively movable toward said holder andsaid jack to perform the pricking and nailing opera-- tions, anail-platehaving a carrier for-holding the same in guidingposition withrelation to said holder and ack, a heel-engaging plate nivoted'o'n saidnail-plate and adapted to be held with its heel-engaging face at anoblique angle to the path of the awls, and a locking device for holdingsaid heel-engaging plate in said oblique position when the carrier is inpricking position, and for releasing it when the carrier is moved intonailing position, to permit it to swing against the nail-plate. A,

25. In a heel-nailing machine of the character described, a heel-holder,a jack, an

awl-gang and a driver-gang respectivelymovable toward said holder andsaid jack to perform the pricking and nailing operations, a nail-platehaving a carrier for holding the same in guiding position with relationto said holder and jack, a heel-engaging plate pivoted on saidnail-plate and adapted to be held with its heel-engaging face at anoblique angle to the paths of the awls, a locking device for normallyholding said heel-engaging plate in said oblique position, and means formoving said locking device out of locking position as the carrier ismoved to nailing position.

26. In a heel-nailing machine of the character described, a heel-holder,a jack, an awl-gang and a driver-gang respectively movable toward saidholder and said jack to perform the pricking and nailing operations, anail-plate having a carrier for holding the same in guiding positionwith relation to said holder and jack, a heel-engaging plate pivoted onsaid nail-plate and adapted to be held with its heel-engaging face at anoblique angle -to the paths of the awls, a locking device mounted onthecarrier having means for normally holding it in position to lock theheel-engaging plate in said oblique position, and means for moving saiddevice to an ino erative position as the carrier is moved to the nailingposition.

27. In a heel-nailing machine of the character described, a heel-holder,a jack, an awl-gang and a driver-gang respectively movable toward saidholder and said jack to perform the pricking and nailing operations, anail-plate slide movable into guiding positions over said holder andsaid jack, a heel-engaging plate pivoted at its front end on said slideand adapted to be held with its heel'engaging face at an oblique angleto the paths of the awls, a locking de- I vice mounted on the slide inthe rear of said plate and having means for normally holding it inposition to engage the rearend of said plate .to prevent upward swingingmovement thereof, and means for engaging said locking device to move thesame out of engaging position as the slide is moved into nailingposition.

'28. In a heel-nailing machine, a nail late slide, a heel-clamping platemounted t ereon to swing into an oblique position with relation thereto,a locking-barvsupported on said slide and movable longitudinally to lockand unlock said plate, and movable transversely to engage said plateindifferent positions, and means for holding said bar in differentpositions of transverse adjustment. 29. In a heel-nailing machine havinga vertically-moving crosshead and a turret mounted thereon, avertically-movable awloarrier,,,and a locking device disposed to beoperated by the turret as it is moved between its positions of use forconnecting and disconnecting the crosshead and the means for supportingthe carrier independently of the crosshead when the latter isdisconnected therefrom. f

31. In a heel-nailing machine having a vertically-moving crosshead and aturret mounted thereon, a vertically movable awlcarrier, means forconnecting said carrier to the crosshead when the turret is in oneposition, and for disconnecting it therefrom when the turret is inanother position, and a friction device for supporting the carrierindependently of the crosshead when the latter is disconnectedtherefrom.

32. In a heel-nailing machine having a vertically-moving crosshead and aturret mounted thereon, a vertically-movable awl carrier, a lockingdevice, means controlled vice to connect and disconnecttheo crosshead,

land the carrienand means on-the orosshead,

" independent of said locking. device,l-f,orlmov- 1o. viceto connect,and disconnectthe,crosshead- V porting the carrier. independently ingthe carriertinto positionstobelocked.

vertically-moving crosshead; and a ,turret;

. mounted thereon, a vertically-movable awlcarrier, a lockmg dev ce,means controlled, I

bythe turret for operating said locki1 1g-.de-,.;

and the carrier, a friction device,-.

crosshead when the, locking device s s in positionto disconnecttbesamelthererfrom, and

. means on the crossliieadfindependent of said Y lockingdevice, forliftingsaid-carrier into position to be locked. 34.. Ina'heel-nailing-machine having a vertically-movable. crosshead, averticallymovable .aWl-carrier, and a vertically-movablenail-plate-slide holder, means for connecting said carrier to thecrosshead to perform the pricking operation on one movement thereof andfor disconnecting it therefrom on another movement thereof, and meansforsupporting the carrier on said holder when .it is disconnected fromthe I crosshead. so

35. In a heel nailing machinehavinga heel support and a verticallymovable holder having a heel-clamping plate supported thereby, avertically movable supporting means for said holder normally actingyieldingly to sustain the same in an elevated positlon', operatingdevices for acting on a ,heel held on said support, actuating means..for said operating devices and means independent of said holder andacting directly on said supporting means and disposed to be operated bysaid actuating means when moved to actuate said operating devices, forlowering said supporting means in advance of the engagement of saidoperating devices with the heel to permit the holder to be lowered byits gravity and thereby to clamp the heel-on said support.

36. In a heel nailing machine having a heelsupport and a verticallymovable holder having a heel-clamping-plate supported thereby, a.vertically movable supporting means disposed beneath said holder andnormally acting yieldingly to sustain the same in an elevated position,operating devices for acting on a heel held on said support, actuatingmeans for said operating devices, and lever mechanism independent ofsaid holder and movable a predetermined distance by said actuatingmeans, during the initial portion of the actuating movevment thereof, tolower said supporting means and. permit said holder to be lowered by itsgravity and its plate to rest pnthe heel on said support to clampthesame in on said support, an

tl lerefor,iaz-heehsupport and a vertically. In heelnailingsmach neiihaving a novablepnail-plate holder, a spring for supporting saidholder in raised position, means independent of said holder, disposed tobe actuated by said driving-mechanism during an initial movement of thehead, to.

compress said spring and permit the holder to be lowered by its gravityand press a heel means-to permit said spring to expand to lift theholder upon the return movement of the head.

38. In a heel nailing machine, a vertically movable head, actuatingmechanism therefor, a heel-support, and a vertically movable nail-plate,a spring for supporting said plate in raisedposition, and means operatedby,

said actuating mechanism during an initial movement of the headconstructed to compress said spring and permit the plate to be loweredby its gravity to press a heel on said support in advance of theoperation thereon by the head, substantially as described.

39. In a heel-nailing machine having a cross-head and a'turret mountedthereon, a nail-plate slide having guideways in which it is reciprocallymounted beneath the cross head, independent locking devicesfor saidturret and for said slide and means for si multaneously moving saidlocking devices to unlocked position to permit said slide to be moved inits guideways and said turret to be rotated.

40. In a heel-nailing machine having a cross-head. and a turret mountedthereon, a nail-plate slide having guideways in which it is reciprocallymounted beneath the crosshead, independent locking devices for saidturret and for said slide and a handle movable to operate both of saidlocking devices to unlock the turret and the slide, to permit the turretto be rotated and the slide to be moved in its guideways.

41. In a heel-nailing machine having a crosshead, a turret mountedthereon, and a nail-plate slide, reciprocally mounted beneathsaidcross-head, independent locking devices for said turret and for saidslide, a handle, and means, operated by said handle, for moving saidlocking devices to unlock the turret and slide, and for moving the slideto different positions.

4:2. In a heel nailing machine having a cross-head, a turret mountedthereon and a nail plate slide reciprocally mounted beneath saidcross-head, independent locking devices for said turret and for saidslide, and. a handle. connected to said slide and having means, disposedto be operated thereby whenv moved to one position for moving saidlocking devices to unlocked position, and when moved to another positionto move said slide in its guid'eways.

43. In a heel-nailing machine, a nail-plate slide having a lockingdevice, a shaft extending longitudinally of said slide and having aswivel connection therewith, connections between said locking device andsaid shaft for moving said device to unlock the slide upon rotativemovement thereof, and a handle for moving said shaft rotatably andlongitudinally. p

44. In a heel-nailing machine having a crosshead, a turret mountedthereon, and a nail-plate slide, locking devices for said turret andforsaid slide a shaft extending longitudinally of the slide, and havinga swivel connection therewith, means operated by the shaft uponrotativemovement thereof for moving said locking devices to unlock theturret slide, and a handle on the shaft for movin it rotatably andlongitudinally.

45. n a heel-nailing mac ine having an independently movable turret andnailplate, the turret being movable between a nailing and a spankingposition and the nail-plate between a retracted and a nailing position,and a locking device controlled by the plate on movement thereof fromits retracted position to lock the turret in nailing position.

46. In a heel-nailing machine having an independently movable turret andnailplate, the turret being movable between a nailing and a spankingposition and the nail-plate between a retracted and a nailing position,and a locking device movableindependently of said turret and plate andcontrolled by said turret upon movement thereof from its nailingposition to lock the plate init'siretracted position. i

47. In a heel-nailing machine having an independently movable turret andnail-;

plate, the turret being movable between a nailing and a spankingposition and the nail-plate between a retracted and a nailing position,and a locking device interposed between the turret and the nail-plateand controlled to lock the turret in nailing position when thenail-plate is also in nailing position.

48. In a heel-nailing machine having an independently movable turret andnailplate, the turret being movable between a nailin and a spankingposition and the nail-plate between a retracted and a nailing position,and a locking device controlled to lock the turret in nailing positionupon movement of the late from its retracted position, and to lock theplate in its retracted position upon movement of the turret from nailingposition.

49.. In a heel-nailing machine having an independently movable turretand nailplate, the turret being movable between a nailing and a spankingposition and the nail-p e between a retracted and a nailing pos1t1on,and a locking-device interposed between the turret and the nail-platefor preventing movement of the nail-plate to nail-.

ingposition when the turret is in spanking position, and for locking theturret in nail- .ing position when the nail-plate is also in nailingposition.

between the turret and the nail-plate and movable to lock the turret innailing position as the nail-plate is moved from its retracted position.

51. In a heel-nailing machine having an independently .movable turretand nailplate, the turret being movable between a nailing and a spankingposition and the nail-plate between a retracted and a nailing position,and a locking device disposed to be moved by the plate to lock theturret in nailing position 'upon movement thereof from its retractedposition.

52. In a heel-nailing machine having an lndependently movable turret andnailplate, the turret being movable between a nailing and a spankingposition and the nail-plate between a retracted and a nailing osition,and a locking device disposed to e held by the turret when in spankingposition to lock the plate from movement to nailing position, and to bemoved by the plate to lock theturretin nailing position on movementthereof from' its retracted position. a

53. In a heel-nailin machine having an independently movab e turret andnailplate, the turret being-movable between a nailing and a spankingposition and the nail-plate between a retracted and a nailing position,and an independently movable locking device interposed between theturret and the nail-plate and movable by one, as it is moved to oneposition, to lock the other in the corresponding position.

54. In a heel-nailing machine having an independently movable turret andnailplate, the turret beingfnovabl e between a nailing and a spankingposition and the nail-plate between a retracted and a nailing position,and a locking device movable in opposite directions betweemthe turretand the plate to lockone and unlock the other when they are incorresponding positions.

55. In a heel-nailing machine having an independently movable turret andnailplate, the turret being movable 'between a nailing and a spankingposition and the nail-plate between a retracted and a nailing

